Tick all checkboxes

[Paul Morrison]

Hi,

I have a set of 4 checkboxes and I want to have a button that will check all
the boxes. I have looked on Google but can only find examples of it being in
Javascript. Is there any way of doing it in a php file. If not, how do I go
about using a Javascript file? Do I have to make a reference to it in the
php?

Cheers,

Paul

[Jerry Stuckle]

Re: Tick all checkboxes

Paul Morrison wrote:[color=blue]
> Hi,
>
> I have a set of 4 checkboxes and I want to have a button that will check all
> the boxes. I have looked on Google but can only find examples of it being in
> Javascript. Is there any way of doing it in a php file. If not, how do I go
> about using a Javascript file? Do I have to make a reference to it in the
> php?
>
> Cheers,
>
> Paul
>
>[/color]

Paul,

PHP is server side, not client side. You can do it with PHP - but that
would mean submitting the file back to PHP and regenerating the entire
page with the checkboxes checked.

Much easier to do it in Javascript, which is client-side. And no, you
don't have to reference the javascript in the PHP file.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attgl obal.net
=============== ===

[Gordon Burditt]

Re: Tick all checkboxes

>I have a set of 4 checkboxes and I want to have a button that will check all[color=blue]
>the boxes. I have looked on Google but can only find examples of it being in
>Javascript. Is there any way of doing it in a php file. If not, how do I go[/color]

PHP runs on the server. It doesn't run until after you submit the
form or click on a link.
[color=blue]
>about using a Javascript file? Do I have to make a reference to it in the
>php?[/color]

You'd need to find a client-side way of doing it. I don't think it's
possible in just HTML. Javascript could do it.

Gordon L. Burditt

[d]

Re: Tick all checkboxes

"Paul Morrison" <nospam@nospam. com> wrote in message
news:dsdoh4$4th $1@oheron.kent. ac.uk...[color=blue]
> Hi,
>
> I have a set of 4 checkboxes and I want to have a button that will check
> all the boxes. I have looked on Google but can only find examples of it
> being in Javascript. Is there any way of doing it in a php file. If not,
> how do I go about using a Javascript file? Do I have to make a reference
> to it in the php?
>
> Cheers,
>
> Paul[/color]

Javascript is the way for that. Using PHP is very possible, but javascript
is quicker to implement and for the browser.

dave

[mannerboy]

Re: Tick all checkboxes

here is a simple example,wish it can be helpful! :)
<script>
function CheckAll(form){
for(var i=0;i<form.elem ents.length;i++ ){
var e = form.elements[i];
if (e.name == 'id[]'){
e.checked = form.chkall.che cked;
}
}
}
</script>

<form name="test" method="post" >
<input name="chkall" type="checkbox"
onclick="CheckA ll(this.form);" >Select All
<input type="checkbox" name="id[]" value="1000">Jo e Schmoe<br />
<input type="checkbox" name="id[]" value="1001" checked="checke d"><br
/>
<input type="checkbox" name="id[]" value="1002">Ja ne Johnson<br />
<input type="checkbox" name="id[]" value="1003">Ch arlie Brown<br />
</form>

[Paul Morrison]

Re: Tick all checkboxes

Thanks guys, got that sorted now, I didnt realise that you could put
Javascript into a php file.

I now have another problem with the checkboxes. I set up my form as follows:

<form method="get" action="sub.php ">
<div align="left" style="font-size:12px ;clear : both">
<input type=button name="CheckAll" value="Check All"
onClick="modify _boxes(true,4)" style="font-size:10px"/>
<input type=button name="UncheckAl l" value="Uncheck All"
onClick="modify _boxes(false,4) " style="font-size:10px"/><p/>
<div style="width:10 px"></div><input type="checkbox"
name="subscript ion" value="economic " id="economic"/><label
for="economic"> Economic</label><br/>
<div style="width:10 px"></div><input type="checkbox"
name="subscript ion" value="environm ental" id="environment al"/><label
for="environmen tal">Environmen tal</label><br/>
<div style="width:10 px"></div><input type="checkbox"
name="subscript ion" value="politica l" id="political"/><label
for="political" >Political</label><br/>
<div style="width:10 px"></div><input type="checkbox"
name="subscript ion" value="social" id="social"/><label
for="social">So cial</label><br/>
<br><input type="submit" value="Submit" style="font-size:10px"/>
</div>
<input type="hidden" name="add_subsc ription" value="1"/>
</form>

Once the user ticks the boxes that apply to them, they click the submit
button and I want to go through the boxes. I am using the following type of
statement:

if('".$subscrip tion[0]."'==0){
$query = "INSERT INTO inj_subscriptio n VALUES ('$user' , 'economic' ,
NULL);";
$result = mysql_query($qu ery) or die('Error during subscription process,
please refresh the page and try again');
if($result){
echo '<p style="color:re d">Subscript ion Successful</p>';
}
}

The clause that I use to get into the loop is:

if($_GET['add_subscripti on']==1){

The problem is that the code I have written checks whether the boxes are
ticked when the page loads up, rather than after the user clicks the submit.
I know that loop worked before as I was using radio buttons rsther than
checkboxes, is this the wrong assumption to make?

Any help would be much appreciated.

Paul